Perhaps you should try some spelling variations:
thuoc sai » thuoc tai, thuoc san, thuoc sach
thanh lap » thanh san, phan lap, thanh hai
toc sai » toc san, toc dai, toc thai
ve pham » vi pham, v pham, ve phan
lap cua » lai cua, tap cua, lam cua
tao hoi » tao khoi, tao boi, thao hoc
duc gia » quoc gia
tay hoi » tay ho, tay thai
hieu ve » hieu va, hieu van
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sai) or (thuoc sai)) ky nang ((tao hoi) OR (tay hoi)). hieu ve pham duc gia thanh lap cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sai) OR (thuoc sai)) ky nang ((tao hoi) OR (tay hoi)). hieu ve pham duc gia thanh lap cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sai) or (thuoc sai)) ky nang ((tao hoi) OR (tay hoi)). hieu ve pham duc gia thanh lap cua te".
• Adding a wildcard symbol may retrieve word variants: ((toc sai) or (thuoc sai)) ky nang ((tao hoi) OR (tay hoi)). hieu ve pham duc gia thanh lap cua te*.